Attitude Control Subsystem

The chapter provides an overview on the Attitude Control Subsystem (ACS). Then it treats all the ACS equipment as far as relevant for spacecraft operations, also providing the mounting vectors/matrices. The option of extension with a propulsion subsystem is sketched out at hand of the Airbus Astrobus-XS (Myriade) propulsion equipment. The last part comprises the onboard software elements and functions for control of the subsystem, treating all the device handlers, assemblies and the ACS controller itself. This includes all the ACS modes and mode transitions. An example orbit analysis is included in the book’s annexes.